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(CNN)There's now a 50:50 chance that the world will surpass a critical threshold of 1.5 degrees Celsius of global warming in the next five years, a new World Meteorological Organization report shows, warning of heating that could have devastating impacts on systems like coral reefs as well as Arctic ice.

The report says that surpassing the limit is likely to be temporary -- temperatures could come back down again -- but science shows that even a temporary overshoot could bring irreversible changes to the planet. The report warns that at least one year between 2022 and 2026 will surpass the 1.5C mark and that there is a 93% chance that the period will see the warmest year on record. It's also almost certain that, on average, the next five years will be hotter than the last five.
    In 2015, the chances of world temperatures temporarily exceeding 1.5C over the next five years were close to zero. Those odds have been inching up ever since as humans continue to emit greenhouse gas, primarily from the use of fossil fuels.
      Scientists have warned that the world needs to limit global warming to 1.5C above the temperatures experienced before industrialization to avoid the more catastrophic effects of the climate crisis. In 2015, most of the world signed onto the Paris Agreement, aiming to limit temperature rise to 2C, but preferably 1.5C.Read MoreThe world is already at least 1.1 degrees Celsius warmer than it was before industrialization. UN report on climate crisis confirms the world already has solutions -- but politics are getting in the way"This study shows -- with a high level of scientific skill -- that we are getting measurably closer to temporarily reaching the lower target of the Paris Agreement on Climate Change," WMO Secretary General Petteri Taalas said in a statement accompanying the Global Annual to Decadal Climate Update.
        "The 1.5°C figure is not some random statistic," he added. "It is rather an indicator of the point at which climate impacts will become increasingly harmful for people and indeed the entire planet."An authoritative climate report published in February by the Intergovernmental Panel on Climate Change (IPCC) said that some of the changes that could come as a result of the planet heating up by more than 1.5 degrees Celsius could be permanent -- even if the planet does cool back down.Even at 1.5C, many of the world's coral reefs will be wiped out, and permafrost in some places could reach a tipping point. Permafrost is "permanently" frozen ground that lies under much of the Arctic, keeping huge stores of carbon dioxide (CO2) locked away. As it melts in warmer temperatures, it releases CO2 and adds to climate change."A single year of exceedance above 1.5°C does not mean we have breached the iconic threshold of the Paris Agreement," said Leon Hermanson from the UK's Met Office, which led the report, "but it does reveal that we are edging ever closer to a situation where 1.5 °C could be exceeded for an extended period."Workers use their helmets to pour water to cool themselves down as a heatwave rages in IndiaThe WMO report was published on the heels of heatwaves in India and Pakistan, which had experts questioning the ability for humans to survive in such high temperatures. In the US, the largest manmade reservoir -- Lake Mead -- has seen water levels plunge to an unprecedented low over the last two months. Mead is a key source of water for millions of people across California, Nevada and Arizona. In California, which is entirely in drought conditions, two of the state's largest reservoirs — Shasta Lake and Lake Oroville — are at "critically low levels," according to the US Drought Monitor.The two largest reservoirs in California are already at critically low levels and the dry season is just startingThe plummeting water levels at the lake are the result of a climate-change fueled megadrought in the American West. A study published by Nature Climate Change found the period from 2000 to 2021 was the driest in 1,200 years in the area."For as long as we continue to emit greenhouse gases, temperatures will continue to rise," Taalas said. "And alongside that, our oceans will continue to become warmer and more acidic, sea ice and glaciers will continue to melt, sea level will continue to rise and our weather will become more extreme. Arctic warming is disproportionately high and what happens in the Arctic affects all of us."Ice sheet and glacier melt in the Arctic will lead to accelerated sea level rise, which could be both irreversible for centuries and disastrous for the planet as the risks of extreme flooding increase.The report highlights how fast humans are warming the planet, said Andrew King, a lecturer in Climate Science at the University of Melbourne."Our greenhouse gas emissions are still at near-record highs and until we get emissions down to net-zero, we're going to continue to see global warming," he said.
          Net zero refers to a state where the world reduces its greenhouse gas emissions as much as possible, and offsets any that are hard to avoid, whether through the use of technology or tree-planting to capture carbon dioxide from the atmosphere. King added: "If we fail to take that action we will have much worse heatwaves and bushfire conditions as well as coral reefs that have been decimated beyond recognition."

          News Source: CNN

          Tags: greenhouse gas emissions the paris agreement will continue to rise the next five years on climate change degrees celsius chance carbon dioxide global warming climate change that the world climate crisis in the arctic in california in california will surpass the world water levels threshold will become coral reefs are getting that we in the next

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          Chelsea star Ethan Ampadu wanted by Empoli on season-long loan transfer after just ONE Blues appearance in five years

          CHELSEA ace Ethan Ampadu is wanted by Italian side Empoli on a season-long loan.

          That’s after making just ONE Premier League appearance for the Blues in the last five years.

          1Chelsea defender Ethan Ampadu looks set for a loan move to EmpoliCredit: Getty

          Ampadu, 21, has been at Chelsea since a move from Exeter City in 2017.

          But he has never found a way to break into the starting XI.

          And after loans at RB Leipzig, Sheffield United and Venezia, the Mail claims Ampadu is set to head out again this summer.

          Empoli finished 14th in Serie A last season as Ampadu got relegated with Venezia.

          READ MORE SUN STORIESChelsea news Aubameyang demanded by Tuchel, Frenkie de Jong fee AGREED, Fofana record bid

          But club chiefs were impressed with some of the Wales international’s performances.

          And Empoli are now set to make an approach ahead of their campaign opener against Spezia on Sunday.

          Ampadu had initially been tipped to stay at Chelsea as back-up to Thiago Silva.

          But Thomas Tuchel’s hopes for this season to go from a five-man defence to a back four.

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          He is desperate to add Leicester’s Wesley Fofana to his current options, which also include Trevoh Chalobah and new signing Kalidou Koulibaly.

          And Tuchel made his thoughts on Ampadu clear by not handing him a squad number for the new season.

          The versatile centre-back will now be hoping to make a lasting impression at Empoli, with his Chelsea deal running until 2024.

          And one player Ampadu is looking to draw inspiration from is fellow young defender Chalobah, who forced his way into Tuchel’s plans last year.

          During Chelsea’s pre-season tour of America, Ampadu said: "Of course [I want to emulate Chalobah] but it’s not just me as there are a few of us with that same mindset that want to break through.

          "We’re out here now and it’s our chance to show it. Like every footballer out there, my dream is to be at the top.

          "I don’t think that’s a bad thing to say and dream; everyone wants to be at the top. It’s about fighting and getting towards that.

          "I just want to keep improving, keep putting my head down, fighting and working every day.

          "That starts in pre-season to try to get the chance. It’s hard to say because I am not at the top, I’m not playing week in, week out for a team trying to win the Premier League and Champions League.

          “So until you get to that point – and once you get there you have to maintain – but it’s about getting there.

          "This club fights for everything: Champions League, Premier League. It’s all about fighting here and trying to get to the top.”

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